APIs
An application programming interface for making digital resources and capabilities available in many different types of applications and integrations.
OPAL (Open @ La Trobe) Figshare REST API
OPAL is La Trobe University's institutional open-access repository, hosted on the Figshare platform. Figshare exposes a public, documented REST API; La Trobe's portal records are retrievable via th...
ORDA Research Data Repository (figshare API)
ORDA is the University of Sheffield's online research data catalogue and repository, hosted on the figshare platform. Public datasets, their metadata and DOIs are accessible programmatically throug...
OSV (Open Source Vulnerabilities) API
OSV is an OpenSSF-hosted distributed vulnerability database and query infrastructure. The OSV API at api.osv.dev exposes vulnerability records keyed to specific package versions or commits across m...
OWASP ZAP API
The HTTP API for controlling and accessing ZAP. Supports automation of access control scans, active and passive scanning, spidering, authentication, alerts, contexts, reports, scripts, and many mor...
Odos Smart Order Router API
The Odos Smart Order Router (SOR) API provides REST endpoints for obtaining optimal token swap quotes, assembling swap transaction data, and executing multi-token swaps across 15 EVM-compatible blo...
Okta API
The Okta Management API is the unified identity and access management interface for the Okta Workforce Identity Platform. It allows developers to integrate authentication, authorization, user/group...
OneAtlas WorldDEM API
The OneAtlas WorldDEM API is a tool that provides access to high-resolution global elevation data. This data, collected by satellites and processed using advanced technologies, offers a detailed an...
Onfleet Organizations & Teams API
Look up your own organization and connected delegatee organizations on Onfleet Connect, manage administrators (Super and Standard, optionally read-only), create and list teams, and trigger Team Aut...
Open Data @ UCLouvain Dataverse API
UCLouvain's institutional research-data repository runs on Dataverse (v6.8 at time of review) and exposes the standard Dataverse Native and Search APIs under /api, allowing programmatic search and ...
Open Exchange Rates API
RESTful JSON API delivering live and historical foreign exchange rates for 200+ world and digital currencies. Supports latest rates, historical end-of-day rates, time-series queries, currency conve...
Open Research Newcastle (Figshare REST API)
Open Research Newcastle is the University of Newcastle's institutional open access repository, launched in 2025 on the Figshare platform after migrating from the former NOVA repository. Its records...
OpenAI Responses API
The Responses API is OpenAI's recommended API primitive for new projects, an evolution of Chat Completions with built-in tools like web search, file search, code interpreter, and support for agenti...
OpenFEMA Fire Data API
The OpenFEMA API provides free, read-only REST access to FEMA and USFA datasets including the National Fire Incident Reporting System (NFIRS) annual public data, disaster declarations, and other em...
OpenFGA Authorization API
The OpenFGA API provides HTTP and gRPC endpoints for fine-grained authorization. Key operations include Check for evaluating access decisions, Write for managing relationship tuples, Read for query...
OpenID Connect (OIDC) Authentication API
The OpenID Connect (OIDC) API is a lightweight identity layer built on top of OAuth 2.0. It enables applications to verify user identity through the Authorization Code Flow, Implicit Flow, and Hybr...
OpenSSH Key Management API
OpenSSH is the premier open-source SSH implementation. While SSH itself is a protocol, OpenSSH provides programmatic interfaces for key management, authorized_keys configuration, known_hosts manage...
OpenSearch Security Plugin REST API
The Security plugin REST API lets administrators programmatically create and manage internal users, roles, role mappings, action groups, tenants, security configuration, audit log configuration, al...
OpenSky Network REST API
REST API for retrieving real-time and historical ADS-B aircraft state vectors, flight tracks, and airport arrival and departure data from the OpenSky Network crowd-sourced receiver network.
OpenStack Identity (Keystone) API
Keystone is the OpenStack Identity service that provides authentication, authorization, and a service catalog for an OpenStack cloud. Tokens issued by Keystone are required to call any other OpenSt...
Opendock Nova (Neutron) API
Production REST API at https://neutron.opendock.com (staging neutron.staging.opendock.com) powering the Opendock Nova warehouse dock-scheduling platform. 151 endpoints covering warehouses, docks, l...
Opentrons HTTP API
The Opentrons HTTP API is a RESTful JSON-based interface exposed by Opentrons robots (Flex and OT-2) on the local network at port 31950. It enables developers to upload and manage protocols, create...
Operator Lifecycle Manager
The Operator Lifecycle Manager (OLM) extends Kubernetes with a declarative API for installing, upgrading, and managing the lifecycle of Operators and their dependencies in a cluster. OLM provides c...
Optimizely CMP Open REST API
The Optimizely Content Marketing Platform (CMP) Open REST API provides programmatic access to Optimizely's content marketing and planning tools. Developers can manage content workflows, campaigns, ...
Optimizely Campaign REST API
The Optimizely Campaign REST API provides programmatic access to Optimizely's email and omnichannel campaign management capabilities. Developers can use the API to manage campaigns, recipients, mai...
Optimizely Content Delivery API
The Optimizely Content Delivery API is a flexible REST API for building headless CMS solutions with Optimizely CMS. It provides a pluggable and configurable web API for querying content, enabling d...
Optimizely Content Management API
The Optimizely Content Management API provides REST endpoints for performing content operations within Optimizely CMS. Developers can create, read, update, and delete content items programmatically...
Optimizely Feature Experimentation REST API
The Optimizely Feature Experimentation REST API enables developers to programmatically manage feature flags, experiments, rollouts, and environments within the Optimizely Feature Experimentation pl...
Optimizely Web Experimentation REST API
The Optimizely Web Experimentation REST API provides programmatic access to Optimizely's A/B testing and web experimentation platform. Developers can manage experiments, projects, audiences, and ot...
Oracle EBS Financial Services API
APIs for financial management including General Ledger, Accounts Payable, Accounts Receivable, Fixed Assets, and Cash Management. These PL/SQL APIs can be deployed as REST or SOAP services through ...
Oracle EBS Human Resources API
APIs for human resources management, payroll processing, and workforce administration. Oracle HRMS provides PL/SQL packaged procedures and functions that serve as an open interface for managing emp...
Oracle EBS Integrated SOA Gateway REST API
RESTful web services for Oracle E-Business Suite modules exposed through the Integrated SOA Gateway (ISG). PL/SQL APIs, Java Bean Services, Application Module Services, and other interface types fr...
Oracle EBS Manufacturing API
APIs for discrete and process manufacturing operations including Bills of Material, Work in Process, and Work Orders. Provides programmatic access to manufacturing execution and planning functions ...
Oracle EBS Supply Chain Management API
APIs for inventory management, purchasing, order management, and logistics within Oracle E-Business Suite. Provides programmatic access to supply chain operations through PL/SQL interfaces deployab...
Oracle EBS e-Commerce Gateway API
Oracle e-Commerce Gateway provides EDI transaction support enabling Oracle E-Business Suite to exchange traditional Electronic Data Interchange documents with trading partners. Supports ASC X12 and...
Oracle Enterprise Manager Cloud Control REST API
REST API for Oracle Enterprise Manager Cloud Control providing access to monitoring, configuration, and administration capabilities including targets, metrics, incidents, blackouts, credentials, us...
Oracle Fusion CX Sales and Fusion Service REST API
REST APIs for Oracle Fusion Cloud Customer Experience, enabling integration with sales force automation, fusion service, customer data management, and commerce applications. The API provides access...
Oracle Fusion Common Features REST API
REST APIs for Oracle Fusion Cloud Applications Common features, providing access to shared services such as attachments, flexfields, lookup types, roles, users, security, and approval workflows use...
Oracle Fusion EPM REST API
REST APIs for Oracle Fusion Cloud Enterprise Performance Management, enabling integration with planning, budgeting, forecasting, financial consolidation, account reconciliation, tax reporting, and ...
Oracle Fusion HCM REST API
REST APIs for Oracle Fusion Cloud Human Capital Management, enabling integration with core HR, talent management, workforce management, and payroll systems. The API provides access to employee reco...
Oracle Fusion Project Management REST API
REST APIs for Oracle Fusion Cloud Project Management, enabling integration with project planning, project costing, project billing, grants management, and project execution capabilities. The API su...
Oracle Fusion SCM REST API
REST APIs for Oracle Fusion Cloud Supply Chain Management, providing access to inventory, order management, procurement, logistics, and manufacturing capabilities. The API enables integration with ...
Oracle Health Millennium Platform FHIR R4 API
The Oracle Health Millennium Platform FHIR R4 API provides OAuth 2.0-secured access to Cerner Millennium EHR data in the HL7 FHIR R4 format, exposing USCDI-aligned resources such as Patient, Practi...
Oracle Integration Developer API
Developer API for Oracle Integration 3 providing day-to-day management of integrations, connections, packages, libraries, lookups, certificates, scheduled integrations, monitoring, B2B trading part...
Oracle Integration Process Automation API
REST API for Oracle Cloud Infrastructure Process Automation enabling management of process definitions, process instances, tasks, decision models, dynamic processes, identities, spaces, analytics, ...
Oracle Primavera P6 EPPM REST API
Oracle Primavera P6 EPPM REST API provides programmatic access to enterprise project portfolio management data including WBS structures, activity schedules, resource assignments, critical path anal...
Oracle Retail Merchandising Foundation Cloud Service API
Oracle Retail Merchandising Foundation Cloud Service provides REST APIs for managing merchandise hierarchies, item setup, purchase orders, cost management, and inventory transactions across omnicha...
Oracle Retail Order Management Suite Cloud Service API
Oracle Retail Order Management Suite Cloud Service provides REST APIs for omnichannel order orchestration, fulfillment, sourcing, and customer service across digital and physical retail channels.
Oracle Solaris StatsStore and Analytics API
REST API and web interface for accessing the Oracle Solaris 11.4 StatsStore, providing consolidated zone resource statistics, system performance data, and historical analytics via CLI, C, Python, a...
Oracle Transportation Management Business Object Resources REST API
Oracle Transportation Management Business Object Resources REST API enables programmatic access to in-system data and integrations with shipment orders, carriers, lanes, rates, and transportation p...
Orange Business Device Location Verification API
Verify whether a mobile device is within a specified geographic area without exposing precise coordinates. Returns match/no-match plus confidence. Implements the CAMARA Device Location Verification...
Orange Business Number Verification API
Silent, network-based mobile phone number verification using the SIM in the end user's device. Replaces SMS OTP and authenticator flows for app onboarding, login, and password reset. Implements the...
Orange Business Population Density Data API
Predictive population density estimations for France and Corsica derived from anonymised aggregated mobile network signals. Returns per-area density bands for retail, mobility, urban planning, and ...
Orange Business Quality on Demand API
Request a temporary boosted network quality profile (latency, throughput, packet loss target) for a specified device session and application flow. Implements the CAMARA Quality on Demand API and un...
Orange Business SIM Swap API
Detect whether the SIM associated with a mobile phone number has been swapped recently. Used to flag account takeover risk before high-value actions (login, transfers, password reset). Implements t...
Oso Cloud Authorization API
The Oso Cloud Authorization API provides REST endpoints for checking permissions, managing authorization facts, querying policies, and enforcing access control across applications and services. Cor...
Outbrain Engage API
Publisher-facing content recommendation API. Returns mixed organic and paid (sponsored) recommendations for rendering in Outbrain widgets via the JS Widget, the iOS/Android Mobile SDK, Smartfeed, a...
Oxylabs Residential Public API
Sub-user management and usage-statistics API for residential proxy customers. Exchanges HTTP Basic credentials for a bearer token via /login, then exposes endpoints for creating, listing, updating,...
Oxylabs Web Scraper API
General-purpose web scraping API that returns rendered HTML and structured JSON from public web pages. Two delivery modes — Realtime (synchronous request/response against realtime.oxylabs.io) and P...